B - Operations – Transporting – 26 – F
Patent
B - Operations, Transporting
26
F
B26F 1/24 (2006.01) B26F 1/14 (2006.01) B28B 11/08 (2006.01) B28B 11/12 (2006.01) B28B 19/00 (2006.01) E04B 1/86 (2006.01) E04B 9/04 (2006.01) G01B 11/12 (2006.01) G01N 21/88 (2006.01) E04B 1/84 (2006.01)
Patent
CA 2283783
A cementitious tile (54) is perforated using a punch (10) of elongate section having a leading face (16) with a saw tooth profile along its length. The punch (10) may also be used to produce indentations (A) which look like perforations when in situ. Circular punches (10) also having a saw tooth profile may be used. The tooth depth is preferable less than 2 mm and the included angle of the tooth profile between 90~ and 150~. The punches (10) produce exceptionally clean edges in the tile (54).
Selon l'invention, on perfore un carreau à base de matériau cimentaire (54) au moyen d'un poinçon (10) de section oblongue présentant une face d'attaque (16) dotée d'un profil en dents de scie sur toute sa longueur. On peut également utiliser ce poinçon (10) pour produire des découpes (A) ressemblant à des perforations une fois les carreaux mis en place. On peut également utiliser des poinçons circulaires (10) présentant un profil en dents de scie. La profondeur des dents est de préférence inférieure à 2 mm et l'angle d'ouverture du profil des dents est compris entre 90 et 150·. Ces poinçons (10) produisent des bords exceptionnellement nets dans les carreaux (54).
Bpb Plc
Ridout & Maybee Llp
LandOfFree
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